Quote Originally Posted by Waterlogged View Post
I guess I'm gonna be the only person here that thinks that testing this with 3 pumps is overkill and in a sense...fixing the results.
The reason why I went with three pumps was because NaeKuh's loop used dual DDCs and that's where one of the reported gains was. I really wanted to increase the odds that I'd see a gain and I did it by mimicking the test setup that anecdotally saw a gain.

It was also my gut feeling that if any gains were to be seen, they'd be at ludicrous pressure values. The rest of my testloop isn't particularly low restriction either: two MCRs, a KM17 flowmeter, a 90 degree bend, ~7' of 3/8" tubing; so the difference in inlet pressures should be pretty tangible. (the very, very informal "squeeze the tube going into the block" test agreed too )

Maybe after GOOC I'll test a block at very low pumping power, but I really don't think it's necessary--if there was any gain to be seen, I think it would have reared its head in this test at least a little bit.